House Joint Resolution No. 4 proposes an amendment to Section 26, Article III of the Idaho Constitution, which currently governs the regulation of intoxicating liquors. The amendment seeks to expand the legislature's authority to include the regulation of psychoactive substances, specifically marijuana and narcotics. If adopted, the amendment would stipulate that only the Idaho Legislature has the power to legalize various activities related to these substances, including their growing, manufacturing, and distribution.

The resolution outlines that the proposed amendment will be presented to Idaho voters in the next general election, asking whether they support granting the legislature exclusive authority over the legalization of psychoactive substances. Additionally, the Legislative Council is tasked with preparing the necessary statements for the election, while the Secretary of State is responsible for publishing the amendment and related arguments as mandated by law.